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Finding the Fourth Proportional to 356,845, 535,474.86 and 159,853

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Solution

The fourth proportional to 356,845, 535,474.86 and 159,853 is: 239,872.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,845 : 535,474.86 = 159,853 : x
  2. Step 2: Convert to fraction form
    356,845/535,474.86 = 159,853/x
  3. Step 3: Cross multiply
    356,845x = 535,474.86 × 159,853
  4. Step 4: Simplify right side
    356,845x = 85,597,262,795.58
  5. Step 5: Solve for x
    x = 85,597,262,795.58/356,845
  6. Step 6: Final answer
    x = 239,872.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.